﻿/* 
 * Copyright (c) 2011 Jeff Zhang
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of 
 * this software and associated documentation files (the "Software"), 
 * to deal in the Software without restriction, including without limitation the rights to use, 
 * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, 
 * and to permit persons to whom the Software is furnished to do so, 
 * subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included 
 * in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Text;

namespace Json {
    public sealed class InternalDictionary : NameObjectCollectionBase {
        public InternalDictionary() : base() { }

        public InternalDictionary(int capacity) : base(capacity) { }

        internal void Add(string key, IJsonObject json) {
            if (string.IsNullOrEmpty(key))
                throw new ArgumentNullException("key");

            if (json == null)
                throw new ArgumentNullException("json");

            base.BaseAdd(key, json);
        }

        public void Remove(string key) {
            if (string.IsNullOrEmpty(key))
                throw new ArgumentNullException("key");

            base.BaseRemove(key);
        }

        public bool Contains(string key) {
            if (string.IsNullOrEmpty(key))
                throw new ArgumentNullException("key");

            return base.BaseGet(key) != null;
        }

        public new string[] Keys { 
            get { return base.BaseGetAllKeys(); } 
        }

        public void Clear() {
            base.BaseClear();
        }

        public IJsonObject this[int index] {
            get { return base.BaseGet(index) as IJsonObject; }
            set {
                if (value == null) {
                    base.BaseSet(index, JsonObject.Null);
                } else {
                    base.BaseSet(index, value);
                }
            }
        }

        public IJsonObject this[string key] {
            get { return base.BaseGet(key) as IJsonObject; }
            set { base.BaseSet(key, value); }
        }
    }
}
